Fill a 100-square grid by dragging — the fill level is the percent. Set percents, match fractions and decimals, and find the percent of a number.
Dragging to shade a hundred-square grid makes the percentage tangible — the proportion of filled squares is the percent, visible without any separate calculation step. Children then match that percent to an equivalent fraction and decimal, and find the percent of a given number. Designed for Grades 5–6, or any learner building the connection between fractions, decimals, and percentages.
A free, no-signup, no-ads math game for Grades 5–6 — practising percent, equivalence, fractions, decimals. Play in your browser on the KidsDoMath games hub or explore more Fractions games.
By grade level: 5th Grade Math Games6th Grade Math Games
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What math does Percent Lab practice? Percent Lab practices Percentages, Equivalence, Fractions, Decimals. Dragging to shade a hundred-square grid makes the percentage tangible — the proportion of filled squares is the percent, visible without any separate calculation step.
What grade is Percent Lab for? Percent Lab is built for Grades 5–6 (ages 10–12). It sits in the Fractions strand, and it ramps across 8 levels so younger or older players find their own pace.
How do you play Percent Lab? Fill a 100-square grid by dragging — the fill level is the percent. Set percents, match fractions and decimals, and find the percent of a number.
Is Percent Lab free to play? Yes. Percent Lab is free, with no ads and no sign-up, and it runs in the browser on a phone, tablet or computer.